GMC 2001 Denali Owner's Manual page 192

AM FM: Press this button to switch between AM, FM1
and FM2. If the front passengers are already listening to
AM FM, the RSA controller will not switch between the
bands and cannot change the frequency.
SEEK: While listening to AM FM, press the up arrow
to tune to the next higher station and stay there. Press
the down arrow to tune to the next lower station and stay
there. The sound will mute while seeking. The SEEK
button is inactive if the AM FM mode on the front radio
is in use.
While listening to a cassette tape, press the up arrow to
hear the next selection on the tape. Press the down arrow
to go back to the previous selection. The SEEK button is
inactive if the tape mode on the front radio is in use.
While listening to a CD, press the up arrow to hear the
next selection on the CD. Press the down arrow to go
back to the start of the current selection (if more than
eight seconds have played). The SEEK button is inactive
in the CD mode if the remote CD player or the
CD changer is in use.
SCAN: Press and hold SEEK until the radio goes into
SCAN mode. SCAN allows you to listen to stations for
a few seconds. The receiver will continue to scan and
momentarily stop at each station until you press SEEK
again. The SCAN function is inactive if the AM FM
mode on the front radio is in use.
P.SET PROG: The front passengers must be
listening to something different for each of these
functions to work:
D
Press this button to seek through the preset radio
stations set on the pushbuttons on the main radio.
D
When a cassette tape is playing, press this button to
go to the other side of the tape.
D
When a CD is playing in the CD changer, press this
button to select a disc.
TAPE CD: Press this button to switch between the tape,
-
remote CD and console mounted CD changer if all are
loaded. Press AM FM to return to the radio when a
cassette tape or CD is playing. The inactive tape or CD
will remain safely inside the radio for future listening.
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